<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>菜单栏</title>
    <link rel="stylesheet" href="./src/index.css">
</head>

<body>
    <ul class="list">
        <li class="content">
            <h1>菜单1</h1>
            <ul class="content-li">
                <li>菜单1</li>
                <li>菜单2</li>
                <li>菜单3</li>
                <li>菜单4</li>
            </ul>
        </li>
        <li class="content">
            <h1>菜单2</h1>
            <ul class="content-li">
                <li>菜单1</li>
                <li>菜单2</li>
                <li>菜单3</li>
                <li>菜单4</li>
            </ul>
        </li>
        <li class="content">
            <h1>菜单3</h1>
            <ul class="content-li">
                <li>菜单1</li>
                <li>菜单2</li>
                <li>菜单3</li>
                <li>菜单4</li>
            </ul>
        </li>
        <li class="content">
            <h1>菜单4</h1>
            <ul class="content-li">
                <li>菜单1</li>
                <li>菜单2</li>
                <li>菜单3</li>
                <li>菜单4</li>
            </ul>
        </li>
    </ul>
    <script src="./src/animate.js"></script>
    <script src="./src/index.js"></script>
</body>

</html>